If the economy is at equilibrium above potential output:
there is a recessionary gap, and expansionary fiscal policy is appropriate.
there is an inflationary gap, and contractionary fiscal policy is appropriate.
there is a recessionary gap, and contractionary fiscal policy is appropriate.
there is an inflationary gap, and expansionary fiscal policy is appropriate.

B) There is an inflationary gap, and contractionary fiscal policy is appropriate.

Explanation:

One of the macroeconomic cases is inflationary gap. It means that the difference between the current level of real gross domestic product (GDP) and the predicted or forecasted GDP that would be experienced and achieved if an economy is at full employment. It could be claimed that when the demand for goods and services gets over the production in the factors such as: higher levels of overall employment, increased trade activities or increased government expenditure.

In order to overcome this gap, the contractionary fiscal policy must be considered. The mechanism of that policy is to increase the taxes decrease the government expenses due to inflationary pressures. This policy consequently will affect the level of consumption and private investment, respectively, these also will decrease the real GDP.

Other concept of macroeconomics is recessionary gap. In comparison to inflationary gap, this concept indicates the economy operating at lower level than its full equilibrium level, in turn, the level of real GDP is also less than full equilibrium level. We used to see this situation when the economy was intending to recess.

In order to overcome this gap, the expansionary fiscal policy will work well. Because of decreasing taxes and increasing government expenditures, the recessionary gap can be fought anymore. Since the taxes decreases, the business will revive and the confidence to the investment will increase, as a result the GDP will rise. Moreover, the growing government expenditures will stimulate the GDP to accrue.

To summarize, according to the question we need the gap in which the economy is above of potential, this means inflationary gap. Following this finding, the contractionary fiscal policy will be solution.

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the investment was $14,174.196

explanation:

a lump sum means that the father of the example made one deposit and leave it be.

we need to know the value of a capital that generated at 4.05% per year during 28 years the sum of $48,613.24

now clearing the formula to solve for capital we got:

and we reach the answer investment = $14,174.20